Problem 11169. - Mohammad Hossein Mehrabi (Am. Math. Mon., 2005)

Problem 11196. - Mohammad Hossein Mehrabi (Am. Math. Mon., 2006)

A Gamma Function Inequality: 11169. - Mohammad Hossein Mehrabi; O. P. Lossers (Am. Math. Mon., 2007)

A Condition on the Commutator: 11196. - Mohammad Hossein Mehrabi; Pál Péter Dályay (Am. Math. Mon., 2008)